Semantic ontology creation and vocabulary expansion method for Tibetan language

Abstract

The invention relates to a method for processing Chinese minority scripts, in particular to a semantic ontology creation and vocabulary expansion method for a Tibetan language. The method comprises the following steps: (1) establishing an upper level ontology on the basis of the Chinese dictionary of the HowNet; (2) expanding conceptual synonyms appearing in the upper level ontology by using definitions in an electronic dictionary; (3) carrying out a conceptual hyponymy mode matching algorithm on the upper level ontology in a multi-language ontology library to expand the concept of the upper level ontology; (4) searching for conceptual synonyms in the expanded ontology; (5) sequencing from higher similarities to lower similarities on the basis of an ontology conceptual lexical semantic similarity algorithm; (6) modifying the sequencing results and editing the ontology. According to the method, the upper level ontology is established on the basis of the Chinese dictionary of the HowNet, levels of different concepts are defined according to a hyponymy in the ontology, and more new semantic words can be obtained on the basis of the hyponymy, so that the vocabulary of the existing Tibetan language ontology is expanded, and the Tibetan language information processing accuracy is increased greatly.

Description

technical field [0001] The invention relates to a method for processing ethnic minority characters, in particular to a method capable of realizing Tibetan semantic ontology creation and vocabulary expansion. Background technique [0002] The concept defined in the dictionary itself has no ambiguity, and it can uniquely and accurately point to entities or objects in the real world. But in sentence processing, concepts in sentences are represented by words. For example, the concept word "Trojan horse" can represent at least three concepts in the following three sentences: [0003] (1) Trojan horse is a kind of toy. [0004] (2) Trojan horse is a kind of sports equipment. [0005] (3) Trojan horse is a virus. [0006] Therefore, the so-called concept ambiguity is caused by the fact that one concept word can represent multiple concepts. Tibetan also has different Chinese translations due to different contexts: [0007] [0008] In addition, for Tibetan, there are many f...

AI Technical Summary

Problems solved by technology

[0014] Shortcomings of the prior art: the semantic ontology creation technologies of languages ​​such as Chinese and English are all based on a large-scale corpus using algorithmic statistics to generate

However, due to the language characteristics and data sparsity of Tibetan, the ontology creation and vocabulary expansion technologies successfully applied in Chinese, English and other languages ​​cannot be directly applied to Tibetan.

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